Improvement in the manufacture of tools for cutting



Letters Patent N0. 105,320, dated July 12, 1870.

IMPROVEMENT IN THE MAHUFACTURH OP TOOLS FOR CUTTING,

Gmrmme, .AND

POLISHING.

".l'he Schedule referred to in these Letters Patent and making part of the same To all whom it may concern 7 Be it known that'l, A'sAnur. Kl Enos, of Piermont, in the county ofltocklaud and State of New York, have invented a certain new and useful Improvement in the lllannlaetureof Tools, \Vheels, and

similar implements or articles for cutting, grinding, and polishing glass, steel, or other metal, and ivory or bone, and other hard substances and 1 do hereby declare the lollowing to be such a full, clear, and 0X- act description of the same as will enable any one skilled in the arts to which my invention appcrtains to make and use the same.

ll'ly inrcntion consists in manufiicturing said tools, implements, or articles, for the purpose aforesaid, of paper pulp, combined either with alumina, sand, emcry,'pcroxide of iron, or other granulated 0r puivcr izcd material, suitable for cutting, grinding, or polishing, as aforesaid, oitherse atcly or in combination with any two or more of said substances.

The said paper pulp sounitcd with said substances or either of them, to be aftmward pressed or worked into the desired shape, and cithcrbakcd or allowed to dry, thus forming a'hard grinding, polishing, or cutting-tool orimplementof the desired shape, with paper pulp as the vehicle or base, to unite and hold the cutting, grinding, or polishing material.

in the practice of my invention, I first prepare a mash ofpaper pulp and water-of about the consistency desired, and then mix in the alumina, or other of the aforesaid substances, until the mass is as sharp or hard with the grinding, cutting, or polishing sub stances, as may he desired.

iron, or other separatcly'or in combination, and worked and pressed I then work or press the combined material in the desired shape, and either bake it or allow it to dry, after which it is ready fJiuse.

In making the mash ofpaper pulp, itis often dcsir' able to add gymstarch, or other kind of size, to give the articles or tools greater hardness or strength.

The proportion of the cutting, grinding, or polishing material mixed in the paper mash will, of course, depend upon the kind of tool'to be made, and the duty it is to perform.

If the material to be treated is soft, andis to be polished or out finely and slowly, but a small proportion of the grinding, cutting, or polishing material is necessary; but if the material is hard, and the cutting, grinding, or polishing is to be rapid, then the proportion of sand, alumina, emery, peroxide of iron, (rouge,) or other similar granular substances is to be increased.

Having now described llnnaturo and extent of my invent-ion,

I claim as new herein and desire to secure by Letters PatentliIamd'actm-ing tools, im plcments, or articles forcutting, rindiug, or polishing metal, lass,-ivory, bone, wood, or other hard or dense substance, of paper pulp,

bined with alumina,

suitable granulated substance, either in the desired shape, substantially as described.

' A. K. EATON.

Witnesses:

Amos BROADNAX, (inonon W; Snouuin'.

sand, gp eny peroxide of 

